The psychometric characteristics of an assessment instrument for perceived harmfulness in adolescents with musculoskeletal pain (PHODA-youth)

J.A. Verbunt; A. Nijhuis; Margit Vikström; A. Stevens; N. Haga; J. de Jong; M. Goossens

doi:10.1002/ejp.592

The psychometric characteristics of an assessment instrument for perceived harmfulness in adolescents with musculoskeletal pain (PHODA-youth)

J.A. Verbunt^*, A. Nijhuis, Margit Vikström, A. Stevens, N. Haga, J. de Jong, M. Goossens

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

BACKGROUND: Cognitive-behavioural models of chronic pain predict that dysfunctional assumptions about harmfulness of activities may maintain pain-related fear and disability. To assess perceived harmfulness in adolescents, the Photograph Series of Daily Activities for youth (PHODA-youth) was developed. Information concerning its methodological quality is currently lacking. OBJECTIVE: To investigate psychometric characteristics (factor structure, test-retest reliability, construct validity) and feasibility of the PHODA-youth in adolescents with chronic musculoskeletal pain. STUDY DESIGN: Test-retest design. STUDY POPULATION: Adolescents aged 13-21 years with chronic nonspecific musculoskeletal pain. METHODS: Participants filled in an electronic version of the PHODA-youth including 89 items twice with a 4-week interval. The instrument's factor structure was determined by a factor analysis. Construct validity was studied with criterion variables: catastrophizing (Pain Catastrophizing Scale for Children), pain intensity (visual analogue scale), depression (Children's Depression Inventory) and pain-related disability (Functional Disability Inventory) using regression analysis. Test-retest reliability was evaluated based on the Pearson correlation coefficient. Feasibility was studied with self-constructed questions. RESULTS: Seventy-one adolescents participated. Results show a three-factor structure for the PHODA-youth including 51 items with subscales labelled as: 'activities of daily life', 'intensive physical activities' and 'social activities'. Total and subscale scores showed a high internal consistency. Its test-retest reliability was good (r = 0.94) and its construct validity is supported by the finding that both catastrophizing (beta = 0.25; p = 0.02) and disability (beta = 0.71; p < 0.001) were uniquely related to the PHODA-youth. In addition, feasibility appeared adequate. CONCLUSION: The findings support the PHODA-youth as a valid and reliable measure of the perceived harmfulness of activities in adolescents with musculoskeletal pain.

Original language	English
Pages (from-to)	695-705
Number of pages	11
Journal	European Journal of Pain
Volume	19
Issue number	5
Early online date	22 Sept 2014
DOIs	https://doi.org/10.1002/ejp.592
Publication status	Published - May 2015

Keywords

FEAR-AVOIDANCE MODEL
FUNCTIONAL DISABILITY INVENTORY
CHILDRENS DEPRESSION INVENTORY
LOW-BACK-PAIN
VERSION
REHABILITATION
IMPACT
SCALE
STATE

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@article{44b32ed6d0a44c6dba9aaec9a139a97b,

title = "The psychometric characteristics of an assessment instrument for perceived harmfulness in adolescents with musculoskeletal pain (PHODA-youth)",

abstract = "BACKGROUND: Cognitive-behavioural models of chronic pain predict that dysfunctional assumptions about harmfulness of activities may maintain pain-related fear and disability. To assess perceived harmfulness in adolescents, the Photograph Series of Daily Activities for youth (PHODA-youth) was developed. Information concerning its methodological quality is currently lacking. OBJECTIVE: To investigate psychometric characteristics (factor structure, test-retest reliability, construct validity) and feasibility of the PHODA-youth in adolescents with chronic musculoskeletal pain. STUDY DESIGN: Test-retest design. STUDY POPULATION: Adolescents aged 13-21 years with chronic nonspecific musculoskeletal pain. METHODS: Participants filled in an electronic version of the PHODA-youth including 89 items twice with a 4-week interval. The instrument's factor structure was determined by a factor analysis. Construct validity was studied with criterion variables: catastrophizing (Pain Catastrophizing Scale for Children), pain intensity (visual analogue scale), depression (Children's Depression Inventory) and pain-related disability (Functional Disability Inventory) using regression analysis. Test-retest reliability was evaluated based on the Pearson correlation coefficient. Feasibility was studied with self-constructed questions. RESULTS: Seventy-one adolescents participated. Results show a three-factor structure for the PHODA-youth including 51 items with subscales labelled as: 'activities of daily life', 'intensive physical activities' and 'social activities'. Total and subscale scores showed a high internal consistency. Its test-retest reliability was good (r = 0.94) and its construct validity is supported by the finding that both catastrophizing (beta = 0.25; p = 0.02) and disability (beta = 0.71; p < 0.001) were uniquely related to the PHODA-youth. In addition, feasibility appeared adequate. CONCLUSION: The findings support the PHODA-youth as a valid and reliable measure of the perceived harmfulness of activities in adolescents with musculoskeletal pain.",

keywords = "FEAR-AVOIDANCE MODEL, FUNCTIONAL DISABILITY INVENTORY, CHILDRENS DEPRESSION INVENTORY, LOW-BACK-PAIN, VERSION, REHABILITATION, IMPACT, SCALE, STATE",

author = "J.A. Verbunt and A. Nijhuis and Margit Vikstr{\"o}m and A. Stevens and N. Haga and {de Jong}, J. and M. Goossens",

year = "2015",

month = may,

doi = "10.1002/ejp.592",

language = "English",

volume = "19",

pages = "695--705",

journal = "European Journal of Pain",

issn = "1090-3801",

publisher = "Wiley",

number = "5",

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T1 - The psychometric characteristics of an assessment instrument for perceived harmfulness in adolescents with musculoskeletal pain (PHODA-youth)

AU - Verbunt, J.A.

AU - Nijhuis, A.

AU - Vikström, Margit

AU - Stevens, A.

AU - Haga, N.

AU - de Jong, J.

AU - Goossens, M.

PY - 2015/5

Y1 - 2015/5

N2 - BACKGROUND: Cognitive-behavioural models of chronic pain predict that dysfunctional assumptions about harmfulness of activities may maintain pain-related fear and disability. To assess perceived harmfulness in adolescents, the Photograph Series of Daily Activities for youth (PHODA-youth) was developed. Information concerning its methodological quality is currently lacking. OBJECTIVE: To investigate psychometric characteristics (factor structure, test-retest reliability, construct validity) and feasibility of the PHODA-youth in adolescents with chronic musculoskeletal pain. STUDY DESIGN: Test-retest design. STUDY POPULATION: Adolescents aged 13-21 years with chronic nonspecific musculoskeletal pain. METHODS: Participants filled in an electronic version of the PHODA-youth including 89 items twice with a 4-week interval. The instrument's factor structure was determined by a factor analysis. Construct validity was studied with criterion variables: catastrophizing (Pain Catastrophizing Scale for Children), pain intensity (visual analogue scale), depression (Children's Depression Inventory) and pain-related disability (Functional Disability Inventory) using regression analysis. Test-retest reliability was evaluated based on the Pearson correlation coefficient. Feasibility was studied with self-constructed questions. RESULTS: Seventy-one adolescents participated. Results show a three-factor structure for the PHODA-youth including 51 items with subscales labelled as: 'activities of daily life', 'intensive physical activities' and 'social activities'. Total and subscale scores showed a high internal consistency. Its test-retest reliability was good (r = 0.94) and its construct validity is supported by the finding that both catastrophizing (beta = 0.25; p = 0.02) and disability (beta = 0.71; p < 0.001) were uniquely related to the PHODA-youth. In addition, feasibility appeared adequate. CONCLUSION: The findings support the PHODA-youth as a valid and reliable measure of the perceived harmfulness of activities in adolescents with musculoskeletal pain.

AB - BACKGROUND: Cognitive-behavioural models of chronic pain predict that dysfunctional assumptions about harmfulness of activities may maintain pain-related fear and disability. To assess perceived harmfulness in adolescents, the Photograph Series of Daily Activities for youth (PHODA-youth) was developed. Information concerning its methodological quality is currently lacking. OBJECTIVE: To investigate psychometric characteristics (factor structure, test-retest reliability, construct validity) and feasibility of the PHODA-youth in adolescents with chronic musculoskeletal pain. STUDY DESIGN: Test-retest design. STUDY POPULATION: Adolescents aged 13-21 years with chronic nonspecific musculoskeletal pain. METHODS: Participants filled in an electronic version of the PHODA-youth including 89 items twice with a 4-week interval. The instrument's factor structure was determined by a factor analysis. Construct validity was studied with criterion variables: catastrophizing (Pain Catastrophizing Scale for Children), pain intensity (visual analogue scale), depression (Children's Depression Inventory) and pain-related disability (Functional Disability Inventory) using regression analysis. Test-retest reliability was evaluated based on the Pearson correlation coefficient. Feasibility was studied with self-constructed questions. RESULTS: Seventy-one adolescents participated. Results show a three-factor structure for the PHODA-youth including 51 items with subscales labelled as: 'activities of daily life', 'intensive physical activities' and 'social activities'. Total and subscale scores showed a high internal consistency. Its test-retest reliability was good (r = 0.94) and its construct validity is supported by the finding that both catastrophizing (beta = 0.25; p = 0.02) and disability (beta = 0.71; p < 0.001) were uniquely related to the PHODA-youth. In addition, feasibility appeared adequate. CONCLUSION: The findings support the PHODA-youth as a valid and reliable measure of the perceived harmfulness of activities in adolescents with musculoskeletal pain.

KW - FEAR-AVOIDANCE MODEL

KW - FUNCTIONAL DISABILITY INVENTORY

KW - CHILDRENS DEPRESSION INVENTORY

KW - LOW-BACK-PAIN

KW - VERSION

KW - REHABILITATION

KW - IMPACT

KW - SCALE

KW - STATE

U2 - 10.1002/ejp.592

DO - 10.1002/ejp.592

M3 - Article

C2 - 25243825

SN - 1090-3801

VL - 19

SP - 695

EP - 705

JO - European Journal of Pain

JF - European Journal of Pain

IS - 5

ER -

The psychometric characteristics of an assessment instrument for perceived harmfulness in adolescents with musculoskeletal pain (PHODA-youth)

Abstract

Keywords

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